Version:  2.0.40 2.2.26 2.4.37 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8

Linux/drivers/net/wireless/ath/wcn36xx/main.c

  1 /*
  2  * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
  3  *
  4  * Permission to use, copy, modify, and/or distribute this software for any
  5  * purpose with or without fee is hereby granted, provided that the above
  6  * copyright notice and this permission notice appear in all copies.
  7  *
  8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 15  */
 16 
 17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 18 
 19 #include <linux/module.h>
 20 #include <linux/firmware.h>
 21 #include <linux/platform_device.h>
 22 #include <linux/of_address.h>
 23 #include <linux/of_device.h>
 24 #include "wcn36xx.h"
 25 
 26 unsigned int wcn36xx_dbg_mask;
 27 module_param_named(debug_mask, wcn36xx_dbg_mask, uint, 0644);
 28 MODULE_PARM_DESC(debug_mask, "Debugging mask");
 29 
 30 #define CHAN2G(_freq, _idx) { \
 31         .band = NL80211_BAND_2GHZ, \
 32         .center_freq = (_freq), \
 33         .hw_value = (_idx), \
 34         .max_power = 25, \
 35 }
 36 
 37 #define CHAN5G(_freq, _idx) { \
 38         .band = NL80211_BAND_5GHZ, \
 39         .center_freq = (_freq), \
 40         .hw_value = (_idx), \
 41         .max_power = 25, \
 42 }
 43 
 44 /* The wcn firmware expects channel values to matching
 45  * their mnemonic values. So use these for .hw_value. */
 46 static struct ieee80211_channel wcn_2ghz_channels[] = {
 47         CHAN2G(2412, 1), /* Channel 1 */
 48         CHAN2G(2417, 2), /* Channel 2 */
 49         CHAN2G(2422, 3), /* Channel 3 */
 50         CHAN2G(2427, 4), /* Channel 4 */
 51         CHAN2G(2432, 5), /* Channel 5 */
 52         CHAN2G(2437, 6), /* Channel 6 */
 53         CHAN2G(2442, 7), /* Channel 7 */
 54         CHAN2G(2447, 8), /* Channel 8 */
 55         CHAN2G(2452, 9), /* Channel 9 */
 56         CHAN2G(2457, 10), /* Channel 10 */
 57         CHAN2G(2462, 11), /* Channel 11 */
 58         CHAN2G(2467, 12), /* Channel 12 */
 59         CHAN2G(2472, 13), /* Channel 13 */
 60         CHAN2G(2484, 14)  /* Channel 14 */
 61 
 62 };
 63 
 64 static struct ieee80211_channel wcn_5ghz_channels[] = {
 65         CHAN5G(5180, 36),
 66         CHAN5G(5200, 40),
 67         CHAN5G(5220, 44),
 68         CHAN5G(5240, 48),
 69         CHAN5G(5260, 52),
 70         CHAN5G(5280, 56),
 71         CHAN5G(5300, 60),
 72         CHAN5G(5320, 64),
 73         CHAN5G(5500, 100),
 74         CHAN5G(5520, 104),
 75         CHAN5G(5540, 108),
 76         CHAN5G(5560, 112),
 77         CHAN5G(5580, 116),
 78         CHAN5G(5600, 120),
 79         CHAN5G(5620, 124),
 80         CHAN5G(5640, 128),
 81         CHAN5G(5660, 132),
 82         CHAN5G(5700, 140),
 83         CHAN5G(5745, 149),
 84         CHAN5G(5765, 153),
 85         CHAN5G(5785, 157),
 86         CHAN5G(5805, 161),
 87         CHAN5G(5825, 165)
 88 };
 89 
 90 #define RATE(_bitrate, _hw_rate, _flags) { \
 91         .bitrate        = (_bitrate),                   \
 92         .flags          = (_flags),                     \
 93         .hw_value       = (_hw_rate),                   \
 94         .hw_value_short = (_hw_rate)  \
 95 }
 96 
 97 static struct ieee80211_rate wcn_2ghz_rates[] = {
 98         RATE(10, HW_RATE_INDEX_1MBPS, 0),
 99         RATE(20, HW_RATE_INDEX_2MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
100         RATE(55, HW_RATE_INDEX_5_5MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
101         RATE(110, HW_RATE_INDEX_11MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
102         RATE(60, HW_RATE_INDEX_6MBPS, 0),
103         RATE(90, HW_RATE_INDEX_9MBPS, 0),
104         RATE(120, HW_RATE_INDEX_12MBPS, 0),
105         RATE(180, HW_RATE_INDEX_18MBPS, 0),
106         RATE(240, HW_RATE_INDEX_24MBPS, 0),
107         RATE(360, HW_RATE_INDEX_36MBPS, 0),
108         RATE(480, HW_RATE_INDEX_48MBPS, 0),
109         RATE(540, HW_RATE_INDEX_54MBPS, 0)
110 };
111 
112 static struct ieee80211_rate wcn_5ghz_rates[] = {
113         RATE(60, HW_RATE_INDEX_6MBPS, 0),
114         RATE(90, HW_RATE_INDEX_9MBPS, 0),
115         RATE(120, HW_RATE_INDEX_12MBPS, 0),
116         RATE(180, HW_RATE_INDEX_18MBPS, 0),
117         RATE(240, HW_RATE_INDEX_24MBPS, 0),
118         RATE(360, HW_RATE_INDEX_36MBPS, 0),
119         RATE(480, HW_RATE_INDEX_48MBPS, 0),
120         RATE(540, HW_RATE_INDEX_54MBPS, 0)
121 };
122 
123 static struct ieee80211_supported_band wcn_band_2ghz = {
124         .channels       = wcn_2ghz_channels,
125         .n_channels     = ARRAY_SIZE(wcn_2ghz_channels),
126         .bitrates       = wcn_2ghz_rates,
127         .n_bitrates     = ARRAY_SIZE(wcn_2ghz_rates),
128         .ht_cap         = {
129                 .cap =  IEEE80211_HT_CAP_GRN_FLD |
130                         IEEE80211_HT_CAP_SGI_20 |
131                         IEEE80211_HT_CAP_DSSSCCK40 |
132                         IEEE80211_HT_CAP_LSIG_TXOP_PROT,
133                 .ht_supported = true,
134                 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
135                 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
136                 .mcs = {
137                         .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
138                         .rx_highest = cpu_to_le16(72),
139                         .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
140                 }
141         }
142 };
143 
144 static struct ieee80211_supported_band wcn_band_5ghz = {
145         .channels       = wcn_5ghz_channels,
146         .n_channels     = ARRAY_SIZE(wcn_5ghz_channels),
147         .bitrates       = wcn_5ghz_rates,
148         .n_bitrates     = ARRAY_SIZE(wcn_5ghz_rates),
149         .ht_cap         = {
150                 .cap =  IEEE80211_HT_CAP_GRN_FLD |
151                         IEEE80211_HT_CAP_SGI_20 |
152                         IEEE80211_HT_CAP_DSSSCCK40 |
153                         IEEE80211_HT_CAP_LSIG_TXOP_PROT |
154                         IEEE80211_HT_CAP_SGI_40 |
155                         IEEE80211_HT_CAP_SUP_WIDTH_20_40,
156                 .ht_supported = true,
157                 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
158                 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
159                 .mcs = {
160                         .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
161                         .rx_highest = cpu_to_le16(72),
162                         .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
163                 }
164         }
165 };
166 
167 #ifdef CONFIG_PM
168 
169 static const struct wiphy_wowlan_support wowlan_support = {
170         .flags = WIPHY_WOWLAN_ANY
171 };
172 
173 #endif
174 
175 static inline u8 get_sta_index(struct ieee80211_vif *vif,
176                                struct wcn36xx_sta *sta_priv)
177 {
178         return NL80211_IFTYPE_STATION == vif->type ?
179                sta_priv->bss_sta_index :
180                sta_priv->sta_index;
181 }
182 
183 static const char * const wcn36xx_caps_names[] = {
184         "MCC",                          /* 0 */
185         "P2P",                          /* 1 */
186         "DOT11AC",                      /* 2 */
187         "SLM_SESSIONIZATION",           /* 3 */
188         "DOT11AC_OPMODE",               /* 4 */
189         "SAP32STA",                     /* 5 */
190         "TDLS",                         /* 6 */
191         "P2P_GO_NOA_DECOUPLE_INIT_SCAN",/* 7 */
192         "WLANACTIVE_OFFLOAD",           /* 8 */
193         "BEACON_OFFLOAD",               /* 9 */
194         "SCAN_OFFLOAD",                 /* 10 */
195         "ROAM_OFFLOAD",                 /* 11 */
196         "BCN_MISS_OFFLOAD",             /* 12 */
197         "STA_POWERSAVE",                /* 13 */
198         "STA_ADVANCED_PWRSAVE",         /* 14 */
199         "AP_UAPSD",                     /* 15 */
200         "AP_DFS",                       /* 16 */
201         "BLOCKACK",                     /* 17 */
202         "PHY_ERR",                      /* 18 */
203         "BCN_FILTER",                   /* 19 */
204         "RTT",                          /* 20 */
205         "RATECTRL",                     /* 21 */
206         "WOW",                          /* 22 */
207         "WLAN_ROAM_SCAN_OFFLOAD",       /* 23 */
208         "SPECULATIVE_PS_POLL",          /* 24 */
209         "SCAN_SCH",                     /* 25 */
210         "IBSS_HEARTBEAT_OFFLOAD",       /* 26 */
211         "WLAN_SCAN_OFFLOAD",            /* 27 */
212         "WLAN_PERIODIC_TX_PTRN",        /* 28 */
213         "ADVANCE_TDLS",                 /* 29 */
214         "BATCH_SCAN",                   /* 30 */
215         "FW_IN_TX_PATH",                /* 31 */
216         "EXTENDED_NSOFFLOAD_SLOT",      /* 32 */
217         "CH_SWITCH_V1",                 /* 33 */
218         "HT40_OBSS_SCAN",               /* 34 */
219         "UPDATE_CHANNEL_LIST",          /* 35 */
220         "WLAN_MCADDR_FLT",              /* 36 */
221         "WLAN_CH144",                   /* 37 */
222         "NAN",                          /* 38 */
223         "TDLS_SCAN_COEXISTENCE",        /* 39 */
224         "LINK_LAYER_STATS_MEAS",        /* 40 */
225         "MU_MIMO",                      /* 41 */
226         "EXTENDED_SCAN",                /* 42 */
227         "DYNAMIC_WMM_PS",               /* 43 */
228         "MAC_SPOOFED_SCAN",             /* 44 */
229         "BMU_ERROR_GENERIC_RECOVERY",   /* 45 */
230         "DISA",                         /* 46 */
231         "FW_STATS",                     /* 47 */
232         "WPS_PRBRSP_TMPL",              /* 48 */
233         "BCN_IE_FLT_DELTA",             /* 49 */
234         "TDLS_OFF_CHANNEL",             /* 51 */
235         "RTT3",                         /* 52 */
236         "MGMT_FRAME_LOGGING",           /* 53 */
237         "ENHANCED_TXBD_COMPLETION",     /* 54 */
238         "LOGGING_ENHANCEMENT",          /* 55 */
239         "EXT_SCAN_ENHANCED",            /* 56 */
240         "MEMORY_DUMP_SUPPORTED",        /* 57 */
241         "PER_PKT_STATS_SUPPORTED",      /* 58 */
242         "EXT_LL_STAT",                  /* 60 */
243         "WIFI_CONFIG",                  /* 61 */
244         "ANTENNA_DIVERSITY_SELECTION",  /* 62 */
245 };
246 
247 static const char *wcn36xx_get_cap_name(enum place_holder_in_cap_bitmap x)
248 {
249         if (x >= ARRAY_SIZE(wcn36xx_caps_names))
250                 return "UNKNOWN";
251         return wcn36xx_caps_names[x];
252 }
253 
254 static void wcn36xx_feat_caps_info(struct wcn36xx *wcn)
255 {
256         int i;
257 
258         for (i = 0; i < MAX_FEATURE_SUPPORTED; i++) {
259                 if (get_feat_caps(wcn->fw_feat_caps, i))
260                         wcn36xx_info("FW Cap %s\n", wcn36xx_get_cap_name(i));
261         }
262 }
263 
264 static int wcn36xx_start(struct ieee80211_hw *hw)
265 {
266         struct wcn36xx *wcn = hw->priv;
267         int ret;
268 
269         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac start\n");
270 
271         /* SMD initialization */
272         ret = wcn36xx_smd_open(wcn);
273         if (ret) {
274                 wcn36xx_err("Failed to open smd channel: %d\n", ret);
275                 goto out_err;
276         }
277 
278         /* Allocate memory pools for Mgmt BD headers and Data BD headers */
279         ret = wcn36xx_dxe_allocate_mem_pools(wcn);
280         if (ret) {
281                 wcn36xx_err("Failed to alloc DXE mempool: %d\n", ret);
282                 goto out_smd_close;
283         }
284 
285         ret = wcn36xx_dxe_alloc_ctl_blks(wcn);
286         if (ret) {
287                 wcn36xx_err("Failed to alloc DXE ctl blocks: %d\n", ret);
288                 goto out_free_dxe_pool;
289         }
290 
291         wcn->hal_buf = kmalloc(WCN36XX_HAL_BUF_SIZE, GFP_KERNEL);
292         if (!wcn->hal_buf) {
293                 wcn36xx_err("Failed to allocate smd buf\n");
294                 ret = -ENOMEM;
295                 goto out_free_dxe_ctl;
296         }
297 
298         ret = wcn36xx_smd_load_nv(wcn);
299         if (ret) {
300                 wcn36xx_err("Failed to push NV to chip\n");
301                 goto out_free_smd_buf;
302         }
303 
304         ret = wcn36xx_smd_start(wcn);
305         if (ret) {
306                 wcn36xx_err("Failed to start chip\n");
307                 goto out_free_smd_buf;
308         }
309 
310         if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
311                 ret = wcn36xx_smd_feature_caps_exchange(wcn);
312                 if (ret)
313                         wcn36xx_warn("Exchange feature caps failed\n");
314                 else
315                         wcn36xx_feat_caps_info(wcn);
316         }
317 
318         /* DMA channel initialization */
319         ret = wcn36xx_dxe_init(wcn);
320         if (ret) {
321                 wcn36xx_err("DXE init failed\n");
322                 goto out_smd_stop;
323         }
324 
325         wcn36xx_debugfs_init(wcn);
326 
327         INIT_LIST_HEAD(&wcn->vif_list);
328         spin_lock_init(&wcn->dxe_lock);
329 
330         return 0;
331 
332 out_smd_stop:
333         wcn36xx_smd_stop(wcn);
334 out_free_smd_buf:
335         kfree(wcn->hal_buf);
336 out_free_dxe_pool:
337         wcn36xx_dxe_free_mem_pools(wcn);
338 out_free_dxe_ctl:
339         wcn36xx_dxe_free_ctl_blks(wcn);
340 out_smd_close:
341         wcn36xx_smd_close(wcn);
342 out_err:
343         return ret;
344 }
345 
346 static void wcn36xx_stop(struct ieee80211_hw *hw)
347 {
348         struct wcn36xx *wcn = hw->priv;
349 
350         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac stop\n");
351 
352         wcn36xx_debugfs_exit(wcn);
353         wcn36xx_smd_stop(wcn);
354         wcn36xx_dxe_deinit(wcn);
355         wcn36xx_smd_close(wcn);
356 
357         wcn36xx_dxe_free_mem_pools(wcn);
358         wcn36xx_dxe_free_ctl_blks(wcn);
359 
360         kfree(wcn->hal_buf);
361 }
362 
363 static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
364 {
365         struct wcn36xx *wcn = hw->priv;
366         struct ieee80211_vif *vif = NULL;
367         struct wcn36xx_vif *tmp;
368 
369         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed);
370 
371         if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
372                 int ch = WCN36XX_HW_CHANNEL(wcn);
373                 wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n",
374                             ch);
375                 list_for_each_entry(tmp, &wcn->vif_list, list) {
376                         vif = wcn36xx_priv_to_vif(tmp);
377                         wcn36xx_smd_switch_channel(wcn, vif, ch);
378                 }
379         }
380 
381         return 0;
382 }
383 
384 static void wcn36xx_configure_filter(struct ieee80211_hw *hw,
385                                      unsigned int changed,
386                                      unsigned int *total, u64 multicast)
387 {
388         struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp;
389         struct wcn36xx *wcn = hw->priv;
390         struct wcn36xx_vif *tmp;
391         struct ieee80211_vif *vif = NULL;
392 
393         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac configure filter\n");
394 
395         *total &= FIF_ALLMULTI;
396 
397         fp = (void *)(unsigned long)multicast;
398         list_for_each_entry(tmp, &wcn->vif_list, list) {
399                 vif = wcn36xx_priv_to_vif(tmp);
400 
401                 /* FW handles MC filtering only when connected as STA */
402                 if (*total & FIF_ALLMULTI)
403                         wcn36xx_smd_set_mc_list(wcn, vif, NULL);
404                 else if (NL80211_IFTYPE_STATION == vif->type && tmp->sta_assoc)
405                         wcn36xx_smd_set_mc_list(wcn, vif, fp);
406         }
407         kfree(fp);
408 }
409 
410 static u64 wcn36xx_prepare_multicast(struct ieee80211_hw *hw,
411                                      struct netdev_hw_addr_list *mc_list)
412 {
413         struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp;
414         struct netdev_hw_addr *ha;
415 
416         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac prepare multicast list\n");
417         fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
418         if (!fp) {
419                 wcn36xx_err("Out of memory setting filters.\n");
420                 return 0;
421         }
422 
423         fp->mc_addr_count = 0;
424         /* update multicast filtering parameters */
425         if (netdev_hw_addr_list_count(mc_list) <=
426             WCN36XX_HAL_MAX_NUM_MULTICAST_ADDRESS) {
427                 netdev_hw_addr_list_for_each(ha, mc_list) {
428                         memcpy(fp->mc_addr[fp->mc_addr_count],
429                                         ha->addr, ETH_ALEN);
430                         fp->mc_addr_count++;
431                 }
432         }
433 
434         return (u64)(unsigned long)fp;
435 }
436 
437 static void wcn36xx_tx(struct ieee80211_hw *hw,
438                        struct ieee80211_tx_control *control,
439                        struct sk_buff *skb)
440 {
441         struct wcn36xx *wcn = hw->priv;
442         struct wcn36xx_sta *sta_priv = NULL;
443 
444         if (control->sta)
445                 sta_priv = wcn36xx_sta_to_priv(control->sta);
446 
447         if (wcn36xx_start_tx(wcn, sta_priv, skb))
448                 ieee80211_free_txskb(wcn->hw, skb);
449 }
450 
451 static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
452                            struct ieee80211_vif *vif,
453                            struct ieee80211_sta *sta,
454                            struct ieee80211_key_conf *key_conf)
455 {
456         struct wcn36xx *wcn = hw->priv;
457         struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
458         struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
459         int ret = 0;
460         u8 key[WLAN_MAX_KEY_LEN];
461 
462         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key\n");
463         wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n",
464                     cmd, key_conf->cipher, key_conf->keyidx,
465                     key_conf->keylen, key_conf->flags);
466         wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "KEY: ",
467                          key_conf->key,
468                          key_conf->keylen);
469 
470         switch (key_conf->cipher) {
471         case WLAN_CIPHER_SUITE_WEP40:
472                 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
473                 break;
474         case WLAN_CIPHER_SUITE_WEP104:
475                 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
476                 break;
477         case WLAN_CIPHER_SUITE_CCMP:
478                 vif_priv->encrypt_type = WCN36XX_HAL_ED_CCMP;
479                 break;
480         case WLAN_CIPHER_SUITE_TKIP:
481                 vif_priv->encrypt_type = WCN36XX_HAL_ED_TKIP;
482                 break;
483         default:
484                 wcn36xx_err("Unsupported key type 0x%x\n",
485                               key_conf->cipher);
486                 ret = -EOPNOTSUPP;
487                 goto out;
488         }
489 
490         switch (cmd) {
491         case SET_KEY:
492                 if (WCN36XX_HAL_ED_TKIP == vif_priv->encrypt_type) {
493                         /*
494                          * Supplicant is sending key in the wrong order:
495                          * Temporal Key (16 b) - TX MIC (8 b) - RX MIC (8 b)
496                          * but HW expects it to be in the order as described in
497                          * IEEE 802.11 spec (see chapter 11.7) like this:
498                          * Temporal Key (16 b) - RX MIC (8 b) - TX MIC (8 b)
499                          */
500                         memcpy(key, key_conf->key, 16);
501                         memcpy(key + 16, key_conf->key + 24, 8);
502                         memcpy(key + 24, key_conf->key + 16, 8);
503                 } else {
504                         memcpy(key, key_conf->key, key_conf->keylen);
505                 }
506 
507                 if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) {
508                         sta_priv->is_data_encrypted = true;
509                         /* Reconfigure bss with encrypt_type */
510                         if (NL80211_IFTYPE_STATION == vif->type)
511                                 wcn36xx_smd_config_bss(wcn,
512                                                        vif,
513                                                        sta,
514                                                        sta->addr,
515                                                        true);
516 
517                         wcn36xx_smd_set_stakey(wcn,
518                                 vif_priv->encrypt_type,
519                                 key_conf->keyidx,
520                                 key_conf->keylen,
521                                 key,
522                                 get_sta_index(vif, sta_priv));
523                 } else {
524                         wcn36xx_smd_set_bsskey(wcn,
525                                 vif_priv->encrypt_type,
526                                 key_conf->keyidx,
527                                 key_conf->keylen,
528                                 key);
529                         if ((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) ||
530                             (WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher)) {
531                                 sta_priv->is_data_encrypted = true;
532                                 wcn36xx_smd_set_stakey(wcn,
533                                         vif_priv->encrypt_type,
534                                         key_conf->keyidx,
535                                         key_conf->keylen,
536                                         key,
537                                         get_sta_index(vif, sta_priv));
538                         }
539                 }
540                 break;
541         case DISABLE_KEY:
542                 if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) {
543                         vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE;
544                         wcn36xx_smd_remove_bsskey(wcn,
545                                 vif_priv->encrypt_type,
546                                 key_conf->keyidx);
547                 } else {
548                         sta_priv->is_data_encrypted = false;
549                         /* do not remove key if disassociated */
550                         if (sta_priv->aid)
551                                 wcn36xx_smd_remove_stakey(wcn,
552                                         vif_priv->encrypt_type,
553                                         key_conf->keyidx,
554                                         get_sta_index(vif, sta_priv));
555                 }
556                 break;
557         default:
558                 wcn36xx_err("Unsupported key cmd 0x%x\n", cmd);
559                 ret = -EOPNOTSUPP;
560                 goto out;
561         }
562 
563 out:
564         return ret;
565 }
566 
567 static void wcn36xx_sw_scan_start(struct ieee80211_hw *hw,
568                                   struct ieee80211_vif *vif,
569                                   const u8 *mac_addr)
570 {
571         struct wcn36xx *wcn = hw->priv;
572 
573         wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN);
574         wcn36xx_smd_start_scan(wcn);
575 }
576 
577 static void wcn36xx_sw_scan_complete(struct ieee80211_hw *hw,
578                                      struct ieee80211_vif *vif)
579 {
580         struct wcn36xx *wcn = hw->priv;
581 
582         wcn36xx_smd_end_scan(wcn);
583         wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN);
584 }
585 
586 static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta,
587                                          enum nl80211_band band)
588 {
589         int i, size;
590         u16 *rates_table;
591         struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
592         u32 rates = sta->supp_rates[band];
593 
594         memset(&sta_priv->supported_rates, 0,
595                 sizeof(sta_priv->supported_rates));
596         sta_priv->supported_rates.op_rate_mode = STA_11n;
597 
598         size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates);
599         rates_table = sta_priv->supported_rates.dsss_rates;
600         if (band == NL80211_BAND_2GHZ) {
601                 for (i = 0; i < size; i++) {
602                         if (rates & 0x01) {
603                                 rates_table[i] = wcn_2ghz_rates[i].hw_value;
604                                 rates = rates >> 1;
605                         }
606                 }
607         }
608 
609         size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates);
610         rates_table = sta_priv->supported_rates.ofdm_rates;
611         for (i = 0; i < size; i++) {
612                 if (rates & 0x01) {
613                         rates_table[i] = wcn_5ghz_rates[i].hw_value;
614                         rates = rates >> 1;
615                 }
616         }
617 
618         if (sta->ht_cap.ht_supported) {
619                 BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) >
620                         sizeof(sta_priv->supported_rates.supported_mcs_set));
621                 memcpy(sta_priv->supported_rates.supported_mcs_set,
622                        sta->ht_cap.mcs.rx_mask,
623                        sizeof(sta->ht_cap.mcs.rx_mask));
624         }
625 }
626 void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates)
627 {
628         u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = {
629                 HW_RATE_INDEX_6MBPS,
630                 HW_RATE_INDEX_9MBPS,
631                 HW_RATE_INDEX_12MBPS,
632                 HW_RATE_INDEX_18MBPS,
633                 HW_RATE_INDEX_24MBPS,
634                 HW_RATE_INDEX_36MBPS,
635                 HW_RATE_INDEX_48MBPS,
636                 HW_RATE_INDEX_54MBPS
637         };
638         u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = {
639                 HW_RATE_INDEX_1MBPS,
640                 HW_RATE_INDEX_2MBPS,
641                 HW_RATE_INDEX_5_5MBPS,
642                 HW_RATE_INDEX_11MBPS
643         };
644 
645         rates->op_rate_mode = STA_11n;
646         memcpy(rates->dsss_rates, dsss_rates,
647                 sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES);
648         memcpy(rates->ofdm_rates, ofdm_rates,
649                 sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES);
650         rates->supported_mcs_set[0] = 0xFF;
651 }
652 static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
653                                      struct ieee80211_vif *vif,
654                                      struct ieee80211_bss_conf *bss_conf,
655                                      u32 changed)
656 {
657         struct wcn36xx *wcn = hw->priv;
658         struct sk_buff *skb = NULL;
659         u16 tim_off, tim_len;
660         enum wcn36xx_hal_link_state link_state;
661         struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
662 
663         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n",
664                     vif, changed);
665 
666         if (changed & BSS_CHANGED_BEACON_INFO) {
667                 wcn36xx_dbg(WCN36XX_DBG_MAC,
668                             "mac bss changed dtim period %d\n",
669                             bss_conf->dtim_period);
670 
671                 vif_priv->dtim_period = bss_conf->dtim_period;
672         }
673 
674         if (changed & BSS_CHANGED_PS) {
675                 wcn36xx_dbg(WCN36XX_DBG_MAC,
676                             "mac bss PS set %d\n",
677                             bss_conf->ps);
678                 if (bss_conf->ps) {
679                         wcn36xx_pmc_enter_bmps_state(wcn, vif);
680                 } else {
681                         wcn36xx_pmc_exit_bmps_state(wcn, vif);
682                 }
683         }
684 
685         if (changed & BSS_CHANGED_BSSID) {
686                 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n",
687                             bss_conf->bssid);
688 
689                 if (!is_zero_ether_addr(bss_conf->bssid)) {
690                         vif_priv->is_joining = true;
691                         vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
692                         wcn36xx_smd_join(wcn, bss_conf->bssid,
693                                          vif->addr, WCN36XX_HW_CHANNEL(wcn));
694                         wcn36xx_smd_config_bss(wcn, vif, NULL,
695                                                bss_conf->bssid, false);
696                 } else {
697                         vif_priv->is_joining = false;
698                         wcn36xx_smd_delete_bss(wcn, vif);
699                         vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE;
700                 }
701         }
702 
703         if (changed & BSS_CHANGED_SSID) {
704                 wcn36xx_dbg(WCN36XX_DBG_MAC,
705                             "mac bss changed ssid\n");
706                 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ",
707                                  bss_conf->ssid, bss_conf->ssid_len);
708 
709                 vif_priv->ssid.length = bss_conf->ssid_len;
710                 memcpy(&vif_priv->ssid.ssid,
711                        bss_conf->ssid,
712                        bss_conf->ssid_len);
713         }
714 
715         if (changed & BSS_CHANGED_ASSOC) {
716                 vif_priv->is_joining = false;
717                 if (bss_conf->assoc) {
718                         struct ieee80211_sta *sta;
719                         struct wcn36xx_sta *sta_priv;
720 
721                         wcn36xx_dbg(WCN36XX_DBG_MAC,
722                                     "mac assoc bss %pM vif %pM AID=%d\n",
723                                      bss_conf->bssid,
724                                      vif->addr,
725                                      bss_conf->aid);
726 
727                         vif_priv->sta_assoc = true;
728                         rcu_read_lock();
729                         sta = ieee80211_find_sta(vif, bss_conf->bssid);
730                         if (!sta) {
731                                 wcn36xx_err("sta %pM is not found\n",
732                                               bss_conf->bssid);
733                                 rcu_read_unlock();
734                                 goto out;
735                         }
736                         sta_priv = wcn36xx_sta_to_priv(sta);
737 
738                         wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
739 
740                         wcn36xx_smd_set_link_st(wcn, bss_conf->bssid,
741                                 vif->addr,
742                                 WCN36XX_HAL_LINK_POSTASSOC_STATE);
743                         wcn36xx_smd_config_bss(wcn, vif, sta,
744                                                bss_conf->bssid,
745                                                true);
746                         sta_priv->aid = bss_conf->aid;
747                         /*
748                          * config_sta must be called from  because this is the
749                          * place where AID is available.
750                          */
751                         wcn36xx_smd_config_sta(wcn, vif, sta);
752                         rcu_read_unlock();
753                 } else {
754                         wcn36xx_dbg(WCN36XX_DBG_MAC,
755                                     "disassociated bss %pM vif %pM AID=%d\n",
756                                     bss_conf->bssid,
757                                     vif->addr,
758                                     bss_conf->aid);
759                         vif_priv->sta_assoc = false;
760                         wcn36xx_smd_set_link_st(wcn,
761                                                 bss_conf->bssid,
762                                                 vif->addr,
763                                                 WCN36XX_HAL_LINK_IDLE_STATE);
764                 }
765         }
766 
767         if (changed & BSS_CHANGED_AP_PROBE_RESP) {
768                 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n");
769                 skb = ieee80211_proberesp_get(hw, vif);
770                 if (!skb) {
771                         wcn36xx_err("failed to alloc probereq skb\n");
772                         goto out;
773                 }
774 
775                 wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb);
776                 dev_kfree_skb(skb);
777         }
778 
779         if (changed & BSS_CHANGED_BEACON_ENABLED ||
780             changed & BSS_CHANGED_BEACON) {
781                 wcn36xx_dbg(WCN36XX_DBG_MAC,
782                             "mac bss changed beacon enabled %d\n",
783                             bss_conf->enable_beacon);
784 
785                 if (bss_conf->enable_beacon) {
786                         vif_priv->dtim_period = bss_conf->dtim_period;
787                         vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
788                         wcn36xx_smd_config_bss(wcn, vif, NULL,
789                                                vif->addr, false);
790                         skb = ieee80211_beacon_get_tim(hw, vif, &tim_off,
791                                                        &tim_len);
792                         if (!skb) {
793                                 wcn36xx_err("failed to alloc beacon skb\n");
794                                 goto out;
795                         }
796                         wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0);
797                         dev_kfree_skb(skb);
798 
799                         if (vif->type == NL80211_IFTYPE_ADHOC ||
800                             vif->type == NL80211_IFTYPE_MESH_POINT)
801                                 link_state = WCN36XX_HAL_LINK_IBSS_STATE;
802                         else
803                                 link_state = WCN36XX_HAL_LINK_AP_STATE;
804 
805                         wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
806                                                 link_state);
807                 } else {
808                         wcn36xx_smd_delete_bss(wcn, vif);
809                         wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
810                                                 WCN36XX_HAL_LINK_IDLE_STATE);
811                 }
812         }
813 out:
814         return;
815 }
816 
817 /* this is required when using IEEE80211_HW_HAS_RATE_CONTROL */
818 static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
819 {
820         struct wcn36xx *wcn = hw->priv;
821         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value);
822 
823         wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value);
824         return 0;
825 }
826 
827 static void wcn36xx_remove_interface(struct ieee80211_hw *hw,
828                                      struct ieee80211_vif *vif)
829 {
830         struct wcn36xx *wcn = hw->priv;
831         struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
832         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif);
833 
834         list_del(&vif_priv->list);
835         wcn36xx_smd_delete_sta_self(wcn, vif->addr);
836 }
837 
838 static int wcn36xx_add_interface(struct ieee80211_hw *hw,
839                                  struct ieee80211_vif *vif)
840 {
841         struct wcn36xx *wcn = hw->priv;
842         struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
843 
844         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n",
845                     vif, vif->type);
846 
847         if (!(NL80211_IFTYPE_STATION == vif->type ||
848               NL80211_IFTYPE_AP == vif->type ||
849               NL80211_IFTYPE_ADHOC == vif->type ||
850               NL80211_IFTYPE_MESH_POINT == vif->type)) {
851                 wcn36xx_warn("Unsupported interface type requested: %d\n",
852                              vif->type);
853                 return -EOPNOTSUPP;
854         }
855 
856         list_add(&vif_priv->list, &wcn->vif_list);
857         wcn36xx_smd_add_sta_self(wcn, vif);
858 
859         return 0;
860 }
861 
862 static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
863                            struct ieee80211_sta *sta)
864 {
865         struct wcn36xx *wcn = hw->priv;
866         struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
867         struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
868         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n",
869                     vif, sta->addr);
870 
871         spin_lock_init(&sta_priv->ampdu_lock);
872         sta_priv->vif = vif_priv;
873         /*
874          * For STA mode HW will be configured on BSS_CHANGED_ASSOC because
875          * at this stage AID is not available yet.
876          */
877         if (NL80211_IFTYPE_STATION != vif->type) {
878                 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
879                 sta_priv->aid = sta->aid;
880                 wcn36xx_smd_config_sta(wcn, vif, sta);
881         }
882         return 0;
883 }
884 
885 static int wcn36xx_sta_remove(struct ieee80211_hw *hw,
886                               struct ieee80211_vif *vif,
887                               struct ieee80211_sta *sta)
888 {
889         struct wcn36xx *wcn = hw->priv;
890         struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
891 
892         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n",
893                     vif, sta->addr, sta_priv->sta_index);
894 
895         wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index);
896         sta_priv->vif = NULL;
897         return 0;
898 }
899 
900 #ifdef CONFIG_PM
901 
902 static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow)
903 {
904         struct wcn36xx *wcn = hw->priv;
905 
906         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n");
907 
908         flush_workqueue(wcn->hal_ind_wq);
909         wcn36xx_smd_set_power_params(wcn, true);
910         return 0;
911 }
912 
913 static int wcn36xx_resume(struct ieee80211_hw *hw)
914 {
915         struct wcn36xx *wcn = hw->priv;
916 
917         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n");
918 
919         flush_workqueue(wcn->hal_ind_wq);
920         wcn36xx_smd_set_power_params(wcn, false);
921         return 0;
922 }
923 
924 #endif
925 
926 static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
927                     struct ieee80211_vif *vif,
928                     struct ieee80211_ampdu_params *params)
929 {
930         struct wcn36xx *wcn = hw->priv;
931         struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(params->sta);
932         struct ieee80211_sta *sta = params->sta;
933         enum ieee80211_ampdu_mlme_action action = params->action;
934         u16 tid = params->tid;
935         u16 *ssn = &params->ssn;
936 
937         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n",
938                     action, tid);
939 
940         switch (action) {
941         case IEEE80211_AMPDU_RX_START:
942                 sta_priv->tid = tid;
943                 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0,
944                         get_sta_index(vif, sta_priv));
945                 wcn36xx_smd_add_ba(wcn);
946                 wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv));
947                 break;
948         case IEEE80211_AMPDU_RX_STOP:
949                 wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv));
950                 break;
951         case IEEE80211_AMPDU_TX_START:
952                 spin_lock_bh(&sta_priv->ampdu_lock);
953                 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_START;
954                 spin_unlock_bh(&sta_priv->ampdu_lock);
955 
956                 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
957                 break;
958         case IEEE80211_AMPDU_TX_OPERATIONAL:
959                 spin_lock_bh(&sta_priv->ampdu_lock);
960                 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_OPERATIONAL;
961                 spin_unlock_bh(&sta_priv->ampdu_lock);
962 
963                 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1,
964                         get_sta_index(vif, sta_priv));
965                 break;
966         case IEEE80211_AMPDU_TX_STOP_FLUSH:
967         case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
968         case IEEE80211_AMPDU_TX_STOP_CONT:
969                 spin_lock_bh(&sta_priv->ampdu_lock);
970                 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_NONE;
971                 spin_unlock_bh(&sta_priv->ampdu_lock);
972 
973                 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
974                 break;
975         default:
976                 wcn36xx_err("Unknown AMPDU action\n");
977         }
978 
979         return 0;
980 }
981 
982 static const struct ieee80211_ops wcn36xx_ops = {
983         .start                  = wcn36xx_start,
984         .stop                   = wcn36xx_stop,
985         .add_interface          = wcn36xx_add_interface,
986         .remove_interface       = wcn36xx_remove_interface,
987 #ifdef CONFIG_PM
988         .suspend                = wcn36xx_suspend,
989         .resume                 = wcn36xx_resume,
990 #endif
991         .config                 = wcn36xx_config,
992         .prepare_multicast      = wcn36xx_prepare_multicast,
993         .configure_filter       = wcn36xx_configure_filter,
994         .tx                     = wcn36xx_tx,
995         .set_key                = wcn36xx_set_key,
996         .sw_scan_start          = wcn36xx_sw_scan_start,
997         .sw_scan_complete       = wcn36xx_sw_scan_complete,
998         .bss_info_changed       = wcn36xx_bss_info_changed,
999         .set_rts_threshold      = wcn36xx_set_rts_threshold,
1000         .sta_add                = wcn36xx_sta_add,
1001         .sta_remove             = wcn36xx_sta_remove,
1002         .ampdu_action           = wcn36xx_ampdu_action,
1003 };
1004 
1005 static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
1006 {
1007         int ret = 0;
1008 
1009         static const u32 cipher_suites[] = {
1010                 WLAN_CIPHER_SUITE_WEP40,
1011                 WLAN_CIPHER_SUITE_WEP104,
1012                 WLAN_CIPHER_SUITE_TKIP,
1013                 WLAN_CIPHER_SUITE_CCMP,
1014         };
1015 
1016         ieee80211_hw_set(wcn->hw, TIMING_BEACON_ONLY);
1017         ieee80211_hw_set(wcn->hw, AMPDU_AGGREGATION);
1018         ieee80211_hw_set(wcn->hw, CONNECTION_MONITOR);
1019         ieee80211_hw_set(wcn->hw, SUPPORTS_PS);
1020         ieee80211_hw_set(wcn->hw, SIGNAL_DBM);
1021         ieee80211_hw_set(wcn->hw, HAS_RATE_CONTROL);
1022 
1023         wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1024                 BIT(NL80211_IFTYPE_AP) |
1025                 BIT(NL80211_IFTYPE_ADHOC) |
1026                 BIT(NL80211_IFTYPE_MESH_POINT);
1027 
1028         wcn->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wcn_band_2ghz;
1029         wcn->hw->wiphy->bands[NL80211_BAND_5GHZ] = &wcn_band_5ghz;
1030 
1031         wcn->hw->wiphy->cipher_suites = cipher_suites;
1032         wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
1033 
1034         wcn->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1035 
1036 #ifdef CONFIG_PM
1037         wcn->hw->wiphy->wowlan = &wowlan_support;
1038 #endif
1039 
1040         wcn->hw->max_listen_interval = 200;
1041 
1042         wcn->hw->queues = 4;
1043 
1044         SET_IEEE80211_DEV(wcn->hw, wcn->dev);
1045 
1046         wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta);
1047         wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif);
1048 
1049         return ret;
1050 }
1051 
1052 static int wcn36xx_platform_get_resources(struct wcn36xx *wcn,
1053                                           struct platform_device *pdev)
1054 {
1055         struct device_node *mmio_node;
1056         struct resource *res;
1057         int index;
1058         int ret;
1059 
1060         /* Set TX IRQ */
1061         res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
1062                                            "wcnss_wlantx_irq");
1063         if (!res) {
1064                 wcn36xx_err("failed to get tx_irq\n");
1065                 return -ENOENT;
1066         }
1067         wcn->tx_irq = res->start;
1068 
1069         /* Set RX IRQ */
1070         res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
1071                                            "wcnss_wlanrx_irq");
1072         if (!res) {
1073                 wcn36xx_err("failed to get rx_irq\n");
1074                 return -ENOENT;
1075         }
1076         wcn->rx_irq = res->start;
1077 
1078         mmio_node = of_parse_phandle(pdev->dev.parent->of_node, "qcom,mmio", 0);
1079         if (!mmio_node) {
1080                 wcn36xx_err("failed to acquire qcom,mmio reference\n");
1081                 return -EINVAL;
1082         }
1083 
1084         wcn->is_pronto = !!of_device_is_compatible(mmio_node, "qcom,pronto");
1085 
1086         /* Map the CCU memory */
1087         index = of_property_match_string(mmio_node, "reg-names", "ccu");
1088         wcn->ccu_base = of_iomap(mmio_node, index);
1089         if (!wcn->ccu_base) {
1090                 wcn36xx_err("failed to map ccu memory\n");
1091                 ret = -ENOMEM;
1092                 goto put_mmio_node;
1093         }
1094 
1095         /* Map the DXE memory */
1096         index = of_property_match_string(mmio_node, "reg-names", "dxe");
1097         wcn->dxe_base = of_iomap(mmio_node, index);
1098         if (!wcn->dxe_base) {
1099                 wcn36xx_err("failed to map dxe memory\n");
1100                 ret = -ENOMEM;
1101                 goto unmap_ccu;
1102         }
1103 
1104         of_node_put(mmio_node);
1105         return 0;
1106 
1107 unmap_ccu:
1108         iounmap(wcn->ccu_base);
1109 put_mmio_node:
1110         of_node_put(mmio_node);
1111         return ret;
1112 }
1113 
1114 static int wcn36xx_probe(struct platform_device *pdev)
1115 {
1116         struct ieee80211_hw *hw;
1117         struct wcn36xx *wcn;
1118         int ret;
1119         u8 addr[ETH_ALEN];
1120 
1121         wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n");
1122 
1123         hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops);
1124         if (!hw) {
1125                 wcn36xx_err("failed to alloc hw\n");
1126                 ret = -ENOMEM;
1127                 goto out_err;
1128         }
1129         platform_set_drvdata(pdev, hw);
1130         wcn = hw->priv;
1131         wcn->hw = hw;
1132         wcn->dev = &pdev->dev;
1133         wcn->ctrl_ops = pdev->dev.platform_data;
1134 
1135         mutex_init(&wcn->hal_mutex);
1136 
1137         if (!wcn->ctrl_ops->get_hw_mac(addr)) {
1138                 wcn36xx_info("mac address: %pM\n", addr);
1139                 SET_IEEE80211_PERM_ADDR(wcn->hw, addr);
1140         }
1141 
1142         ret = wcn36xx_platform_get_resources(wcn, pdev);
1143         if (ret)
1144                 goto out_wq;
1145 
1146         wcn36xx_init_ieee80211(wcn);
1147         ret = ieee80211_register_hw(wcn->hw);
1148         if (ret)
1149                 goto out_unmap;
1150 
1151         return 0;
1152 
1153 out_unmap:
1154         iounmap(wcn->ccu_base);
1155         iounmap(wcn->dxe_base);
1156 out_wq:
1157         ieee80211_free_hw(hw);
1158 out_err:
1159         return ret;
1160 }
1161 static int wcn36xx_remove(struct platform_device *pdev)
1162 {
1163         struct ieee80211_hw *hw = platform_get_drvdata(pdev);
1164         struct wcn36xx *wcn = hw->priv;
1165         wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n");
1166 
1167         release_firmware(wcn->nv);
1168         mutex_destroy(&wcn->hal_mutex);
1169 
1170         ieee80211_unregister_hw(hw);
1171         iounmap(wcn->dxe_base);
1172         iounmap(wcn->ccu_base);
1173         ieee80211_free_hw(hw);
1174 
1175         return 0;
1176 }
1177 static const struct platform_device_id wcn36xx_platform_id_table[] = {
1178         {
1179                 .name = "wcn36xx",
1180                 .driver_data = 0
1181         },
1182         {}
1183 };
1184 MODULE_DEVICE_TABLE(platform, wcn36xx_platform_id_table);
1185 
1186 static struct platform_driver wcn36xx_driver = {
1187         .probe      = wcn36xx_probe,
1188         .remove     = wcn36xx_remove,
1189         .driver         = {
1190                 .name   = "wcn36xx",
1191         },
1192         .id_table    = wcn36xx_platform_id_table,
1193 };
1194 
1195 static int __init wcn36xx_init(void)
1196 {
1197         platform_driver_register(&wcn36xx_driver);
1198         return 0;
1199 }
1200 module_init(wcn36xx_init);
1201 
1202 static void __exit wcn36xx_exit(void)
1203 {
1204         platform_driver_unregister(&wcn36xx_driver);
1205 }
1206 module_exit(wcn36xx_exit);
1207 
1208 MODULE_LICENSE("Dual BSD/GPL");
1209 MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com");
1210 MODULE_FIRMWARE(WLAN_NV_FILE);
1211 

This page was automatically generated by LXR 0.3.1 (source).  •  Linux is a registered trademark of Linus Torvalds  •  Contact us